Javascript没有在iPhone中执行 [英] Javascript not executing in iPhone
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问题描述
我想使用UIWebView从我的iPhone应用程序执行javascript代码。
I want to execute javascript code from my iPhone application using UIWebView.
但是只有html部分正在执行而javascript部分没有执行。它也没有显示错误。
But only html part is executing while javascript part is not executing. It's also not showing an error.
NSMutableString *htmlCode = [NSMutableString stringWithString:@"<!DOCTYPE HTML>"];
[htmlCode appendString:@"<html><head><tilte> sadaf </title>"];
[htmlCode appendString:@"<h1>My First Web Page</h1>"];
[ htmlCode appendString:@" <p id='demo'>This is a paragraph.</p>"];
[self.webView loadHTMLString:htmlCode baseURL:nil];
webView.delegate= self;
[webView stringByEvaluatingJavaScriptFromString:@"<script type='text/javascript'>document.getElementById('demo').innerHTML=Date();</script> "];
推荐答案
检查委托是否设置正确。
Check if delegate has been set correctly.
- (void)viewDidLoad
{
[super viewDidLoad];
// init and create the UIWebView
webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 88, 320, 400)];
webView.autoresizesSubviews = YES;
webView.autoresizingMask=(UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth);
[webView setDelegate:self];//set the web view delegates for the web view to be itself
NSMutableString *htmlCode = [NSMutableString stringWithString:@"<!DOCTYPE HTML>"];
[htmlCode appendString:@"<h1>My First Web Page</h1>"];
[htmlCode appendString:@" <p id='demo'>This is a paragraph.</p>"];
[htmlCode appendString:@"</form> </body> </html> "];
[self.webView loadHTMLString:htmlCode baseURL:nil];
[self.view addSubview:webView];//add the web view to the content view
}
- (void) webViewDidFinishLoad:(UIWebView *)webView1
{
NSLog(@"webViewDidFinishLoad");
[webView1 stringByEvaluatingJavaScriptFromString:@"alert('hi');document.getElementById('demo').innerHTML=Date();"];
}
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